JPS57172347A - Electrostatic image developing toner - Google Patents
Electrostatic image developing tonerInfo
- Publication number
- JPS57172347A JPS57172347A JP56035169A JP3516981A JPS57172347A JP S57172347 A JPS57172347 A JP S57172347A JP 56035169 A JP56035169 A JP 56035169A JP 3516981 A JP3516981 A JP 3516981A JP S57172347 A JPS57172347 A JP S57172347A
- Authority
- JP
- Japan
- Prior art keywords
- average mol
- styrene
- copolymer
- image developing
- developing toner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
- G03G9/087—Binders for toner particles
- G03G9/08702—Binders for toner particles comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- G03G9/08706—Polymers of alkenyl-aromatic compounds
- G03G9/08708—Copolymers of styrene
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
- G03G9/087—Binders for toner particles
- G03G9/08702—Binders for toner particles comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- G03G9/08737—Polymers derived from conjugated dienes
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Developing Agents For Electrophotography (AREA)
Abstract
PURPOSE:To prevent offset phenomenon in heat fixing, by using a binder resin >=60wt% styrene-butadiene copolymer having >=20wt.average mol.wt. Mw/ no.average mol.wt.Mn ratio. CONSTITUTION:A binder to be used for an electrostaitic image developing toner contains >=60wt% styrene-butadiene copolymer having 200,000-1.5million wt. average mol.wt. and >=20wt.average mol.wt. Mw/no.average mol.wt. Mn ratio. The styrene content of a said copolymer is 70-98wt%. In addition to said copolymer, polystyrene, a styrene-acrylic copolymer, and the like resin are combined to prepare the toner, thus permitting the obtained toner to have 130- 150 deg.C minimum fixing temperature lower than >=200 deg.C offset phenomenon-causing temperature, favorable pulverizability, fluidity, and triboelectricity, and further long life.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56035169A JPS57172347A (en) | 1981-03-13 | 1981-03-13 | Electrostatic image developing toner |
US06/634,173 US4564573A (en) | 1981-03-13 | 1984-07-24 | Electrostatic image forming toner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56035169A JPS57172347A (en) | 1981-03-13 | 1981-03-13 | Electrostatic image developing toner |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57172347A true JPS57172347A (en) | 1982-10-23 |
Family
ID=12434356
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56035169A Pending JPS57172347A (en) | 1981-03-13 | 1981-03-13 | Electrostatic image developing toner |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57172347A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0277066A (en) * | 1989-08-25 | 1990-03-16 | Nippon Carbide Ind Co Inc | Electrostatic charge image developing toner |
-
1981
- 1981-03-13 JP JP56035169A patent/JPS57172347A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0277066A (en) * | 1989-08-25 | 1990-03-16 | Nippon Carbide Ind Co Inc | Electrostatic charge image developing toner |
JPH0327904B2 (en) * | 1989-08-25 | 1991-04-17 | Nippon Carbide Kogyo Kk |
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